Metal cask.



PATENTED MAY 8, 1906 A. HOLLB. METAL GASK. APPLICATION FILED FEB..6,1905.

Wii 21. asses ARTHUR HOLLE, OF MUNICH, GERMANY.

METAL oAsK.

Specification of Letters Patent. Application filed February 6, 1 05. Serial No. 244,386.

Batenteo. May 8, 1906.

To all whom it may concern:

Be it known that I, ARTHUR Hours, a citizen of Germany, residing at Munich, Bavaria, Germany, have invented certain new and useful Improvements in Metal Casks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention consists of a metal cask adapted for the transport and pasteurization of beer, the said cask having expansible ends and a non-expansible frame, as hereinafter set forth, and particularly pointed out in the claims.

In order to render the presents ecification easily intelligible, reference is ha to the accompanying drawings, in which similar letters of reference denote similar parts throughout the several views.

Figure 1 is aside elevation of the cask; Fig. 2, a central vertical section through the same; Fig. 8, a plan, and 4 a view, of the same seen from underneath.

The cask consists of the cylindrical body 0, having the top I) and the bottom (1 provided with egocentric corrugations b and a, respectively. The top and bottom plates are attached to the body of the cask by means of folds, whichaare soldered up to render them properly tight, and the cylindrical part of thecask is so formed that the folds of the end plates shall not extend beyond the cylin drical walls, or, in other words, shall lie flush with the cylinder-wall.

Star-shaped frames 6 and f are provided at the top and bottom of the cask, the arms of said frames being made to correspond, so that vertical rods g will serve to connect the two star-frames of each cask properly together. The top and bottom frames are'so dimensioned that the vertical rods or stays will lieclose against the cylindrical walls of the cask and prevent them. from bulging out.

At the top of the cask the periphery of the top plate is advantageously made flat, the corrugations commencing a slig'hfdistance inward from the periphery, so that when the contents of the cask expand, owing to pasteurization, the end plate will be enabled to give without weakening the solder-joint at the folds. The bottom plate is advantageously let into the cylinder, and in order to prevent the joint from being weakened by the bulging out of this plate the lower starframe is advantageously provided with an annular support it, either attached to the frame or made in one piece with the same.

' By means of the rods g, with their nuts, the two frames are tightened onto the cask and form a protecting-case for the same, at the same time allowing the necessary expansion at the top and bottom. Since the s ace left after the expansion of one or both 0 the end plates has noinjurious effect on the contents of. the cask, it is not necessary that the end plates return to their original positions. The cask may be made of ordinary white metal or galvanized-iron sheet metal.

I claim as my invention 1. A metal cask comprising a substantially cylindrical body, and expansTible metal ends, in combination with means for reinforcing the body against internal pressure, and

,means reventing the outward expansion of the en s near their periphery while leaving 7 the central portion thereof free to expand.

2. A metal cask comprising a substantially cylindrical body, and expansible ends se cured thereto, in combination with a support resting against the peripheral portion of the end and leaving the central portion free to expand, and means connecting the two sup-.

' gated portion, and the bottom end inset and also corrugated, in combination with an annular support bearing against the peripheral portion of the bottom end leaving the I central portion free to expand, star-shaped frames one Bearing directly upon the plane peripherial portion of the top end and the other against the annular support, and rods lying closely against the cylindrical body and connecting the two frames to hold the same firmly in position.

seo soe In testimony whereof I hereunto afiix my slgnature 1n the presence of two witnesses.

ARTHUR HOLLE. Witnesses:

K. KAHLEN,

W. LOBENHOFFER. 

